Lewisville WWTP: Municipal Wastewater Treatment in Lewisville, Texas

Lewisville WWTP is a municipal wastewater treatment facility located in Lewisville, Texas, serving a population of around 91,000 residents. Situated in Denton County, the plant is part of the broader wastewater infrastructure supporting the Dallas-Fort Worth metropolitan area. As a facility serving a medium-to-large agglomeration, the plant operates under the U. S. Clean Water Act, which requires secondary treatment as a minimum standard for municipal wastewater plants. The National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Texas Commission on Environmental Quality (TCEQ), governs discharge limits and monitoring requirements to protect water quality. The plant's treated effluent is discharged into receiving waters that ultimately flow into the Trinity River basin, a major watershed in North Texas. The Trinity River drains into the Trinity Bay and the Gulf of Mexico, supporting diverse aquatic ecosystems and providing water resources for communities downstream.

The plant discharges into the Trinity River basin, which flows through the Dallas-Fort Worth area and eventually reaches Trinity Bay and the Gulf of Mexico. This watershed supports a variety of aquatic life, including fish and migratory birds, and is ecologically important for the region. The plant's operations help maintain water quality in the basin, reducing nutrient and pollutant loads that could impact downstream habitats.